Dragon King: Three Lives and Three Lives Continues Love

In a capital city in the mortal world, a little maid and young lady accidentally saved the Dragon King who turned into a little white snake. To break through the heavenly net, one person's soul is needed. In the whole world, only that little maid's soul is useful. But the Dragon King and her had already had a little spark of love, and he could only watch her marry as a wife. Then I understood what heartache is.